I learned exactly thanks to this that the concept of "fairness" doesn't exist when discussing salaries, and it's all up to the market which is moral-less:
If two people are doing the same job and giving the company $X profit, it's only fair that they are being paid the same regardless of where they live. Think optimizing a marketing campaign that changes monthly revenue from $10M to $30M, both people should be compensated similarly since they are bringing the same profit to the company.
But also if two people are doing the same job, it's fair they are compensated the same amount of $, regardless of whether one produces $X and another $Y depending on the company situation or their cost of living. Think optimizing the same program to run in 0.1s instead of 1s, assuming everything is the same, for Google that's worth millions but for your neighbor it's worth hundreds of $, but both are gonna pay you 10h * your hourly rate.
Those two examples are vastly incompatible; companies will of course insist that they pay you based on your expenses, while workers based on how they help the company, but in the end there's a contradiction, and since they cannot both be right they must both be wrong. The "right" solution is that they'll pay you based on the market, how much they think you are worth, your experience, your negotiating abilities, etc.
If two people are doing the same job and giving the company $X profit, it's only fair that they are being paid the same regardless of where they live. Think optimizing a marketing campaign that changes monthly revenue from $10M to $30M, both people should be compensated similarly since they are bringing the same profit to the company.
But also if two people are doing the same job, it's fair they are compensated the same amount of $, regardless of whether one produces $X and another $Y depending on the company situation or their cost of living. Think optimizing the same program to run in 0.1s instead of 1s, assuming everything is the same, for Google that's worth millions but for your neighbor it's worth hundreds of $, but both are gonna pay you 10h * your hourly rate.
Those two examples are vastly incompatible; companies will of course insist that they pay you based on your expenses, while workers based on how they help the company, but in the end there's a contradiction, and since they cannot both be right they must both be wrong. The "right" solution is that they'll pay you based on the market, how much they think you are worth, your experience, your negotiating abilities, etc.